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Recent advancements and challenges in emerging applications of biochar-based catalysts

Biotechnology Advances 2023年第1期67卷 108181页

作者： Yuan, Xiangzhou Cao, Yang Li, Jie Patel, Anil Kumar Dong, Cheng-Di Jin, Xin Gu, Cheng Yip, Alex C.K. Tsang, Daniel C.W. Ok, Yong Sik Ministry of Education of Key Laboratory of Energy Thermal Conversion and Control School of Energy and Environment Southeast University Nanjing210096 China Korea Biochar Research Center APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering Korea University Seoul02841 Korea Republic of Department of Civil and Environmental Engineering The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong CAS Key Laboratory of Urban Pollutant Conversion Institute of Urban Environment Chinese Academy of Sciences Xiamen361021 China Institute of Aquatic Science and Technology College of Hydrosphere National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing210023 China Department of Chemical and Process Engineering University of Canterbury Christchurch New Zealand Research Centre for Resources Engineering towards Carbon Neutrality The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong

The sustainable utilization of biochar produced from biomass waste could substantially promote the development of carbon neutrality and a circular economy. Due to their cost-effectiveness, multiple functionalities, tailorable porous structure, and thermal stability, biochar-based catalysts play a vital role in sustainable biorefineries and environmental protection, contributing to a positive, planet-level impact. This review provides an overview of emerging synthesis routes for multifunctional biochar-based catalysts. It discusses recent advances in biorefinery and pollutant degradation in air, soil, and water, providing deeper and more comprehensive information of the catalysts, such as physicochemical properties and surface chemistry. The catalytic performance and deactivation mechanisms under different catalytic systems were critically reviewed, providing new insights into developing efficient and practical biochar-based catalysts for large-scale use in various applications. Machine learning (ML)-based predictions and inverse design have addressed the innovation of biochar-based catalysts with high-performance applications, as ML efficiently predicts the properties and performance of biochar, interprets the underlying mechanisms and complicated relationships, and guides biochar synthesis. Finally, environmental benefit and economic feasibility assessments are proposed for science-based guidelines for industries and policymakers. With concerted effort, upgrading biomass waste into high-performance catalysts for biorefinery and environmental protection could reduce environmental pollution, increase energy safety, and achieve sustainable biomass management, all of which are beneficial for attaining several of the United Nations Sustainable Development Goals (UN SDGs) and Environmental, Social and Governance (ESG). © 2023 The Authors

关键词： Biodiversity

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Impairment of the Gut Health in Danio Rerio Exposed to Triclocarban

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SSRN 2022年

作者： Yan, Zhenguang Du, Jinzhe Zhang, Tianxu Sun, Qianhang Sun, Binbin Zhang, Yan Li, Shuo State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China Marine Science and Technology College Qingdao Agricultural University Key Laboratory of Pollution Processes and Environmental Criteria Ministry of Education Qingdao266109 China Tianjin Key Laboratory of Environmental Remediation and Pollution Control College of Environmental Science and Engineering Nankai University Tianjin300350 China State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock School of Life Sciences Inner Mongolia University Hohhot010070 China Tianjin Key Laboratory of Animal and Plant Resistance College of Life Sciences Tianjin Normal University Tianjin300387 China

Triclocarban (TCC) is the principal component in personal and health care products because it is a highly effective, broad-spectrum, and safe new antibacterial agent. TCC has recently been discovered in aquatic creatures and has been shown to constitute a health danger to aquatic animals. Although several studies have looked into toxicological effects of TCC on a variety of aquatic animals, from algae to fish, the possible gut-toxicity molecular pathway in zebrafish has never been thoroughly explored. We investigated the gut-toxic effects of TCC on zebrafish by exposing them to different TCC concentrations (100, 1,000 g/L) for 21 days. We discovered for the first time that MAPK and TLR signaling pathways related to gut diseases were significantly altered, and inflammation (up-regulation of TNF-α, IL-6, and IL-1) caused by TCC was confirmed to be largely mediated by AHR and its related cytokines, using the results of qPCR, transcriptome analysis, and molecular docking (AHR, AHRR, CYP1A1 and CYP1B1). Furthermore, high-throughput 16S rDNA sequencing demonstrated that TCC exposure reduced bacterial diversity and changed gut microbial composition, with the main phyla Fusobacteria and Proteobacteria, as well as the genera Cetobacterium and Rhodobacteraceae, being the most affected. TCC exposure also caused damage to the gut tissue, including an increase in the number of goblet cells and a reduction in the height of columnar epithelium and the thickness of the muscular layer, as shown by H&E staining. Our findings will aid in the understanding of the mechanism of TCC-induced aquatic toxicity in aquatic species. © 2022, The Authors. All rights reserved.

关键词： Pathology

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Freestanding Catalytic Membranes Assembled from Blade-Shaped Prussian Blue Analog Sheets for Flow-Through Degradation of Antibiotic Pollutants

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SSRN 2022年

作者： Li, Jiaxin Yi, Huiyu Shen, Yi Li, Yungui Fang, Qile Research and Development Center for Watershed Environmental Eco-Engineering Beijing Normal University Zhuhai519087 China State Key Laboratory of Water Environment Simulation School of Environment Beijing Normal University Beijing100875 China Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province College of Environment Zhejiang University of Technology Hangzhou310032 China Sichuan Provincial Sci-Tech Cooperation Base of Low-cost Wastewater Treatment Technology Department of Environmental Engineering Southwest University of Science and Technology Mianyang621010 China China West Normal University China

Membrane catalysis is a frontier technology for effectively removing organic containments, and burgeoning membranes assembled from two-dimensional (2D) materials have significantly flourished in peroxymonosulfate (PMS)-based catalytic membrane processes. Here, a bottom-up strategy based on restricting CoFe Prussian blue analog (PBA) crystal growth in one direction is used to fabricate large-scale 2D blade-shaped PBA sheets, whose radial size and thickness can be adjusted by the precursor ion ratio (CoII/FeII). The stripe CoFe PBA sheets can directly serve as building blocks and are simply assembled into a free-standing 2D membrane by interweaving assembly. The assembled CoFe PBA catalytic membrane possesses excellent wetting properties, guaranteeing an unimpeded mass transfer process, which leads to a superior instantaneous catalytic performance for the antibiotic norfloxacin during the continuous and flow-through membrane catalytic process. SO4•− and 1O2 are demonstrated to be the main active species, which synergistically contribute to the PMS-driven organic degradation. © 2022, The Authors. All rights reserved.

关键词： Antibiotics

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Insights into Periodate Oxidation of Antibiotics Mediated by Visible-Light-Induced Polymeric Carbon Nitride: Performance and Mechanism

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SSRN 2022年

作者： Chen, Yi Yuan, Xingzhong Jiang, Longbo Zhao, Yanlan Chen, Haoyun Wang, Hou College of Environmental Science and Engineering Hunan University Changsha410082 China Key Laboratory of Environment Biology and Pollution Control Hunan University Ministry of Education Changsha410082 China Institute of Resources and Environment Hunan University of Technology and Business Changsha410205 China

Periodate (PI)-based advanced oxidation processes (AOPs) have drawn growing attention in an effort to alleviate pollutants issues in the aqueous environment. Different from previous use of ultraviolet light or metal catalysts, this study proposes a novel system for the visible-light-assisted activation of PI via metal-free polymeric carbon nitride (CN). The best catalytic effect is achieved by CN synthesized from urea (UCN). Using the UCN/PI/Vis system, it was demonstrated that the effective charge separation predominately causes kinetic increase in photocatalytic degradation. In the whole system, UCN and organic pollutant functioned as the electron donor, while PI acted as the activated electron acceptor. By obtaining electrons from the conduction band, PI inhibits charge carriers from complexing and makes holes available for contaminants to oxidize. The tetracycline effectively underwent nearly 100% removal within 10 min and the corresponding kobs attained 0.40839 min-1 . Besides, outstanding catalytic performance in a broad range of pH (2.99-11.01) was confirmed. Meanwhile, the UCN/PI/Vis system demonstrated favorable immunity to common wastewater components, good stability, and reusability. The prominent active species for TC degradation were 1O2 and iodate radical (IO3·, IO4·), followed by O2•- . This study establishes a precedent for visible-light-induced activation of PI by UCN, and interfacial electron transfer occurs in a synergistic process, and greatly accelerated photocatalytic oxidation is accomplished with PI acting as an electron scavenger. © 2022, The Authors. All rights reserved.

关键词： Carbon nitride

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基于宏基因组分析揭示焦化废水处理系统中微生物群落的结构与功能——基于脱氮基因（英文）

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engineering 2024年第5期 76-89页

作者： Jiaying Ma Fan Wang Haifeng Fan Enchao Li Huaqiang Chu Xuefei Zhou Yalei Zhang State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Baowu Water Technology Co. Ltd. Shanghai Institute of Pollution Control and Ecological Security Tongji University

Microbial communities play crucial roles in pollutant removal and system stability in biological systems for coking wastewater（CWW） treatment, but a comprehensive understanding of their structure and functions is still lacking. A five month survey of four sequential bioreactors, anoxic 1/oxic 1/anoxic 2/oxic 2（A1/O1/A2/O2）, was carried out in a full-scale CWW treatment system in China to elucidate operational performance and microbial ecology. The results showed that A1/O1/A2/O2 had excellent and stable performance for nitrogen removal. Both total nitrogen(TN;（17.38 ± 6.89） mg.L-1) and ammonium–nitrogen(NH4+-N;（2.10 ± 1.34） mg.L-1) in the final biological effluent satisfied the Chinese national standards for CWW. Integrated analysis of 16S ribosome RNA（r RNA） sequencing and metagenomic sequencing showed that the bacterial communities and metagenomic function profiles of A1 and O1 shared similar functional structures, while those of A2 significantly varied from those of other bioreactors（p < 0.05）. The results indicated that microbial activity was strongly connected with activated sludge function. Nitrosospira,Nitrosomonas, and SM1A02 were responsible for nitrification during the primary anoxic–oxic（AO） stage and Azoarcus and Thauera acted as important denitrifiers in A2. Nitrogen cycling-related enzymes and genes work in the A1/O1/A2/O2 system. Moreover, the hao genes catalyzing hydroxylamine dehydrogenase（EC 1.7.2.6） and the nap A and nap B genes catalyzing nitrate reductase（EC 1.9.6.1） played important roles in the nitrification and denitrification processes in the primary and secondary AO stages, respectively. The mixed liquor suspended solids（MLSS）/total solids（TS）, TN removal rate（RR）, total organic carbon（TOC）(RR), and NH4+-N（RR） were the most important environmental factors for regulating the structure of core bacterial genera and nitrogen-cycling genes. Proteobacteria were the potential main participants in nitrogen metabolism in the A1/O1/A2/O2 system for C

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Biochar-Derived Flower-Like Co-Mo2c Spheres/G-C3n4 Photocatalyst: engineering Morphology Configuration and Electronic Structure Tuning

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SSRN 2022年

作者： Zhou, Yin Zhai, Yunbo Zhang, Chen Qin, Deyu Wang, Wenjun Liu, Xiangmin Liu, Xiaoping Wang, Zhexian Huang, Cheng Luo, Hanzhuo Liu, Liming Zhang, Xue Huang, Maolin Hou, Changlan College of Environmental Science and Engineering Hunan University Changsha410082 China Key Laboratory of Environmental Biology and Pollution Control Hunan University Ministry of Education Changsha410082 China School of Resources and Environment Hunan University of Technology and Business Changsha410205 China

Here, we develop a biochar-derived flower-like Co-Mo2C sphere/g-C3N4 (CMCN) heterostructure photocatalyst for antibiotic degradation. The flower-like Co-Mo2C nanostructure is derived from biochar, an inexpensive plant byproduct. The open-up nanoflake structure with sharp edges can induce the fast charge collection and separation. DFT calculations and experimental characterizations are conducted to fundamentally understand the enhanced intrinsic photocatalytic activity of the as-prepared CMCN photocatalysts, especially the role of Co atoms. The delocalized charge density of CMCN could be rational tailored via the increasing density of state and the difference in work functions between g-C3N4 and g-C3N4. The electron density of Mo 3d in CMCN is increased through integrating it with Co atoms, which possess numerous delocalized electrons. The CMCN catalyst displays a superior photocatalytic activity for antibiotic degradation, mainly arising from the multifaceted open-up surfaces of Co-Mo2C nanoflower, the higher density of electron, as well as the prolonged lifetime of photogenerated charge carriers. © 2022, The Authors. All rights reserved.

关键词： Morphology

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A multi-source data collection and information fusion method for distribution network based on IOT protocol 3

A multi-source data collection and information fusion method...

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3rd International Conference on Green Energy and Sustainable Development, GESD 2020

作者： Cai, Yongxiang Xiao, Xiaobing Tian, Hao Fu, Yu Wu, Peng He, Hongliu Electric Power Research Institute of Guizhou Power Grid Co. Ltd. Guiyang China State Key Lab of Control and Simulation of Power Systems and Generation Equipments Dept. of Electrical Engineering Tsinghua University Beijing China Binjiang College Nanjing University of Information Science and Technology Wuxi China

With the construction of Global Energy Internet, Intelligent distribution network has more and more characteristics of multi scene, multi service and changeable measurement and control objects. In order to realize data collection and information exchange among the intelligent terminal and energy, power grid, load, energy storage and other control resources in distribution network, we should research an architecture which can adapt to various data sources Based on dynamic self describing protocol. © Published under licence by IOP Publishing Ltd.

关键词： Digital storage

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Mechanistic Insights into Removal of Electron-Rich Emerging Pollutants Using Carbon Nitride Co-Modified Cyanobacteria Biochar in Fenton-Like Oxidation Reaction: Dual Non-Radical Degradation Pathways

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SSRN 2024年

作者： Deng, Jie Chen, Jiaqing Zeng, Yuxi Yang, Hailan Li, Fang Song, Biao Yang, Yang Wang, Ziwei Zhou, Chengyun Wang, Wenjun College of Environmental Science and Engineering Key Laboratory of Environmental Biology and Pollution Control Ministry of Education Hunan University Changsha410082 China College of Environmental and Resource Sciences Zhejiang University Zhejiang Hangzhou310058 China Department of Chemical and Materials Engineering University of Alberta EdmontonABT6G 1H9 Canada Department of Applied Physics The Hong Kong Polytechnic University Kowloon China School of Resources and Environment Hunan University of Technology and Business Changsha410205 China

Biochar has the issues with inadequate stability and low catalytic activity. In this study, two-step ball milling method was applied to synthesis carbon nitride co-modified cyanobacteria biochar (CN-BC). The optimized CN-BC can effectively activate peroxymonosulfate (PMS) to degrade emerging pollutants. The degradation rate constant of enrofloxacin in the CN-BC/PMS system reached 0.815 min-1. Free radical quenching experiments and electrochemical experiments confirmed that the electron transfer and 1O2 were the main pathways in the CN-BC/PMS system. The CN-BC/PMS system has selective degradation of electron-rich pollutants, and the pollutants containing electron-donating groups are more easily degraded than those containing electron-withdrawing group. The selective degradation pathway of pollutants by CN-BC was further analyzed using density functional theory (DFT). Continuous flow CN-BC/PMS membrane system showed long-term abatement of emerging pollutants. This study improved understanding of the mechanism of PMS activation by cyanobacteria biochar catalysts and provided valuable information for the design of separated catalytic membranes with good stability and high catalytic activity. In addition, the acquisition of CN-BC membrane provides a new route for membrane-based domain-limited catalysis. © 2024, The Authors. All rights reserved.

关键词： Oxidation

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In Situ Generation of Reduced Graphene Oxide on 3d Cu-Ni Foam as High-Performance Electrodes for Capacitive Deionization

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SSRN 2022年

作者： Li, Ruige Wu, Dapeng Song, Jingke He, Yachao Zhu, Wenyu Wang, Xiaopeng Dube, Nhlanhla Mtelisi Jiang, Kai School of Environment Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control Ministry of Education Henan Key Laboratory for Environmental Pollution Control Henan Normal University Henan Xinxiang453007 China Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Henan Xinxiang453007 China Henan Agricultural University College of Science Henan Zhengzhou450002 China Henan University of Technology College of Food Science and Technology Henan Zhengzhou450001 China

Capacitive deionization (CDI) is one of the highly efficient technologies for desalination of brackish water. Recently, 3D metallic foams with honeycomb and three-dimensional geometries of linked pores have caused a great deal of interest as electrode current collectors. In this paper, a composite electrode with 3D Cu-Ni foam as collector and reduced graphene oxide (rGO) as active material was synthesized by a simple substitution process. The obtained rGO/Cu-Ni foam (named rGO/CNF ) was directly employed as anode and cathode in a CDI cell. The effects of different Cu concentrations on the produced electrode material were investigated using SEM, XRD, Raman and XPS. According to the results of the investigation, the addition of copper improves the conductivity of the electrodes, and the specific capacitance of the electrode reached 250.58 F·g-1 at 2 mV·s-1 when the Cu of content was 3.5%. In the desalination process, the rGO/CNF-1.5 (Note: 1.5 stands for the substitution reaction time) electrode has a high salt adsorption capacity (SAC) of 84.6 mg/g at 1.2 V when the feed water is 250 ppm NaCl solution, which is 3.35 times higher than that of the rGO/ Ni foam electrode, and has good stability after 20 cycles. © 2022, The Authors. All rights reserved.

关键词： Graphene

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Open Architecture Design of Universal Terminal for Multiple Measurement and control Scenarios of Distribution Network 3

Open Architecture Design of Universal Terminal for Multiple ...

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3rd International Conference on Green Energy and Sustainable Development, GESD 2020

作者： Zhang, Ruifeng Xiao, Xiaobing Tian, Hao Cai, Yongxiang Fu, Yu He, Hongliu Electric Power Research Institute of Guizhou Power Grid Co. Ltd. Guiyang China State Key Lab of Control and Simulation of Power Systems and Generation Equipments Dept. of Electrical Engineering Tsinghua University Beijing China Binjiang College Nanjing University of Information Science and Technology Wuxi China

Introduce the IoT platform technology based on SDN (Software Defined Network), cloud-based, flexible management and configuration of smart terminals, and support access to millions of terminal devices and smart operation and maintenance management. The traditional monitoring system is integrated with the Internet of Things platform, and on the basis of realizing the general SCADA system monitoring function, through the side-cloud collaboration, the lean management of the distribution station area is realized. © Published under licence by IOP Publishing Ltd.

关键词： SCADA systems

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