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2nd International Conference on Water Technologies, ICWT 2022

作者： Kshirsagar, Deepa Thanekar, Pooja Balapure, Kshama Bhandari, Vinay M. Chemical Engineering and Process Development Division CSIR National Chemical Laboratory Pune411008 India

ISBN: (纸本)9789819967643

Newer biomass-derived adsorbents were developed from green pods of Cassia fistula apart from further nano-metal (Cu, Fe oxide, Ni) and acid modifications. The adsorbents were characterized by FE-SEM, HR-TEM, Powder XRD, BET and FTIR analysis. Removal studies on two different dyes, Malachite green and Congo red, revealed a very high adsorption capacity for the removal of malachite green dye, ∼1355 mg/g for Cu-nanocomposite, 661 mg/g for Fe-nanocomposite and 456 mg/g for unmodified adsorbent;also an order of magnitude, 2000% higher than the reported commercial carbon adsorbents. The results clearly highlight utility of bio-nanocomposites for wastewater treatment and dye removal. © 2023 Elsevier Ltd. All rights reserved.

关键词： Effluent treatment

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Synthesis of Organic-Inorganic Hybrid Aluminum Hypophosphite Microspheres Flame Retardant and Its Flame Retardant Research on Thermoplastic Polyurethane

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Journal of Wuhan University of Technology(Materials Science) 2024年第1期39卷 221-233页

作者：刘生鹏 XU Zhi ZHANG Xinyuan WEI Huan XIONG Yun DING Yigang HUANG Wenbo 许莉莉 Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Key Laboratory for Green Chemical Process of Ministry of EducationSchool of Chemical Engineering and PharmacyWuhan Institute of TechnologyWuhan 430205China Hubei Three Gorges Laboratory Yichang 443007China School of Technology Materials Science and Engineering Wuhan Institute of TechnologyWuhan 430205China

Aluminum hypophosphite microspheres(AHP) were synthesized by hydrothermal method using NaH2PO2·H2O and AlCl3·6H2O as raw materials, and then the AHP microspheres were polymerized by surface polymerization of micro-nanospheres with cyclic cross-linked poly(cyclotriphosphazene-co-4,4'-sulfonyldiphenol)(PZS). A new organic-inorganic poly(phosphonitrile)-modified aluminum hypophosphite microspheres(PZS-AHP) were synthesized by encapsulation and applied to flame retardant thermoplastic polyurethane(TPU). The microstructure and chemical composition of the PZS-AHP microsphere were characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and X-ray spectroscopy. The thermal stability of PZS-AHP microsphere was explored with thermogravimetric analysis. Thermogravimetric data indicate that the PZS-AHP microspheres have excellent thermal stability. The thermal and flame-retarding properties of the TPU composites were evaluated by thermogravimetric(TG), limited oxygen index tests(LOI), and cone calorimeter test(CCT). The TPU composite achieved vertical burning(UL-94) V-0 grade and LOI value reached 29.2% when 10 wt% PZS-AHP was incorporated. Compared with those of pure TPU, the peak heat release rate(pHRR) and total heat release(THR) of TPU/10%PZS-AHP decreased by 82.2% and 42.5%, respectively. The results of CCT indicated that PZS-AHP microsphere could improve the flame retardancy of TPU composites.

关键词： polyphosphazene thermoplastic polyurethane flame retardancy aluminum hypophosphite surface polymerization

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Interfacial B-O bonding modulated S-scheme B-doped N-deficient C_(3)N_(4)/O-doped-C_(3)N_(5) for efficient photocatalytic overall water splitting

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Chinese Chemical Letters 2025年第1期36卷 355-361页

作者： Entian Cui Yulian Lu Zhaoxia Li Zhilei Chen Chengyan Ge Jizhou Jiang Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of TechnologyYancheng 224051China School of Environmental Ecology and Biological Engineering Key Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationWuhan Institute of TechnologyWuhan 430205China

Photocatalytic overall pure water splitting is a promising method for generating green hydrogen energy under mild ***,this process is often hindered by sluggish electron-hole separation and *** address this,a step-scheme(S-scheme)B-doped N-deficient C_(3)N_(4)/O-doped C_(3)N_(5)(BN-C_(3)N_(4)/O-C_(3)N_(5))heterojunction with interfacial B-O bonds has been *** Pt and Co(OH)_(2) as co-catalysts,BN-C_(3)N_(4)/O-C_(3)N_(5) S-scheme heterojunction demonstrates significantly enhanced photocatalytic activity for overall pure water splitting under visible light,achieving H_(2) and O_(2) evolution rates of 40.12 and 19.62μmol/h,*** characterizations and experiments revealed the performance-enhancing effects of the enhanced built-in electric field and the interfacial B-O ***,the strengthened built-in electric field provides sufficient force for rapid interfacial electron ***,by reducing the transport energy barrier and transfer distance,the interfacial B-O bonds facilitate rapid recombination of electrons and holes with relatively low redox potential via the S-scheme charge-transfer route,leaving the high-potential electrons and holes available for H^(+)reduction and OH^(-)oxidation ***,the photocatalytic efficiency of BN-C_(3)N_(4)/O-C_(3)N_(5) S-scheme heterojunction was significantly improved,making it a promising approach for green hydrogen production through overall pure water splitting.

关键词： Interfacial B-O bonds BN-C_(3)N_(4) O-C_(3)N_(5) S-scheme heterojunction Water splitting

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Experimental and theoretical investigation of sulfur-doped g-C_(3)N_(4)nanosheets/FeCo_(2)O_(4)nanorods S-scheme heterojunction for photocatalytic H_(2)evolution

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Nano Research 2024年第9期17卷 8007-8016页

作者： Haitao Wang Lianglang Yu Jiahe Peng Jing Zou Weiping Gong Jizhou Jiang School of Chemistry and Environmental Engineering School of Environmental Ecology and Biological EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationNovel Catalytic Materials of Hubei Engineering Research CenterWuhan Institute of TechnologyWuhan 430205China Guangdong Provincial Key Laboratory for Electronic Functional Materials and Devices Huizhou UniversityHuizhou 516007China

g-C_(3)N_(4)emerges as a promising metal-free semiconductor photocatalyst due to its cost-effectiveness,facile synthesis,suitable visible light response,and robust thermal ***,its practical application in photocatalytic hydrogen evolution reaction(HER)is impeded by rapid carrier recombination and limited light absorption *** this study,we successfully develop a novel g-C_(3)N_(4)-based step-scheme(S-scheme)heterojunction comprising two-dimensional(2D)sulfur-doped g-C_(3)N_(4)nanosheets(SCN)and one-dimensional(1D)FeCo_(2)O_(4)nanorods(FeCo_(2)O_(4)),demonstrating enhanced photocatalytic HER *** engineered SCN/FeCo_(2)O_(4)S-scheme heterojunction features a well-defined 2D/1D heterogeneous interface facilitating directed interfacial electron transfer from FeCo_(2)O_(4)to SCN,driven by the lower Fermi level of SCN compared to FeCo_(2)O_(4).This establishment of electron-interacting 2D/1D S-scheme heterojunction not only facilitates the separation and migration of photogenerated carriers,but also enhances visible-light absorption and mitigates electron-hole pair *** structure analysis and density functional theory calculations corroborate that the carrier migration in the SCN/FeCo_(2)O_(4)photocatalyst adheres to a typical S-scheme heterojunction mechanism,effectively retaining highly reactive photogenerated ***,the optimized SCN/FeCo_(2)O_(4)heterojunction exhibits a substantially high hydrogen production rate of 6303.5μmol·g^(-1)·h^(-1)under visible light excitation,which is 2.4 times higher than that of the ***,the conjecture of the S-scheme mechanism is confirmed by in situ XPS *** 2D/1D S-scheme heterojunction established in this study provides valuable insights into the development of high-efficiency carbon-based catalysts for diverse energy conversion and storage applications.

关键词： g-C_(3)N_(4) FeCo_(2)O_(4) S-scheme heterojunction photocatalytic hydrogen evolution reaction(HER)

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Bio- colouration of nylon fabric using natural dyes and mordants

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Materials Research Innovations 2025年第2期29卷 108-116页

作者： Chowdhury, Tanvir Ahmed Khandaker, Jahirul Islam Gafur, Mohammad Abdul Repon, Md. Reazuddin Hossain, Alamgir Islam, Md. Kamrul Shanto, Nadim Khan Department of Physics Jahangirnagar University Savar Dhaka Bangladesh Department of Textile Engineering Daffodil International University Dhaka Bangladesh Pilot Plant & Process Development Centre Bangladesh Council of Scientific and Industrial Research Dhaka Bangladesh Department of Production Engineering Faculty of Mechanical Engineering and Design Kaunas University of Technology Kaunas Lithuania

Natural dyes offer a harmless alternative to synthetic counterparts, minimizing the release of toxic chemicals associated with synthetic dyes. In this investigation, nylon fabrics underwent dyeing with neem leaf extract under acidic, neutral and alkaline conditions along with lemon juice mordant. The study revealed that colour strength exhibited an increase with decreasing pH levels, with the mordanted fabric dyed in an acidic medium demonstrating the highest value. Analysis of colour coordinates indicated that the mordanted fabric dyed in an acidic medium exhibited superior colour pickup compared to the other samples. Enhanced fastness properties were achieved under acidic pH conditions when a mordant was used. The FTIR test result ensured the nylon-lemon juice-neem leaves extracted dye interaction. The EDX analysis also confirmed the elemental composition of neem leaves extracted dye in nylon assisted by lemon juice. The SEM test results validated the dyeing process empirically. © 2024 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Alkalinity

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Increasing the greenness of an organic acid through deep eutectic solvation and further polymerisation

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Green Energy & Environment 2022年第4期7卷 840-853页

作者： Liteng Li Xiaofang Li Susu Zhang Hongyuan Yan Xiaoqiang Qiao Hongyan He Tao Zhu Baokun Tang College of Pharmaceutical Science Institute of Life Science and Green DevelopmentKey Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of EducationHebei UniversityBaoding071002China CAS Key Laboratory of Green Process and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing010190China

Acrylic acid(AA)is an important and widely used industrial chemical,but its high toxicity renders its use incompatible with the concept of green *** leveraging its terminal carboxyl group and unsaturated bond,we designed and explored a new strategy to increase the greenness of AA via its eutectic melting using a quaternary ammonium salt(choline chloride)to form a deep eutectic solvent(DES),followed by polymerisation of the DES to form a polymer(poly(DES)).The greenness of AA,DES,and poly(DES)was evaluated via an in vitro test using MGC80-3 cells and an in vivo test using Kunming *** toxicity improved from Grade 2(moderately toxic)for AA to Grade 1(slightly toxic)for DESs and Grade 0(non-toxic)for poly(DES)in the in vitro ***,the poly(DES)s showed a lower toxicity in mice than the DESs in the in vivo ***,greenness enhancement was successfully achieved,with the greenness following the order AAdevelopment.

关键词： Greenness Deep eutectic solvent Polymer Toxicity Application

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Tandem asymmetric propargylic amination/carboxylative cyclization reaction to chiral 5-methylidene-2-oxazolidinones using CO_(2) as C1 synthon

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Science China Chemistry 2025年第4期68卷 1402-1411页

作者： Zheng Zhang Zhi-Hao Zhang Ying Sun Yun-Hao Tang Yi-Zhuo Yang Feng Zhou Jian Zhou State Key Laboratory of Petroleum Molecular&Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesShanghai Engineering Research Center of Molecular Therapeutics and New Drug DevelopmentSchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200062China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China

We report a tandem asymmetric Cu-catalyzed propargylic amination(ACPA)/Ag-catalyzed carboxylative cyclization(SCC)with CO_(2) to 5-methylidene-2-oxazolidinones;even with tetrasubstituted *** varying pyridine bisoxazoline(PYBOX)ligands;a general and highly enantioselective ACPA of unprecedentedly broad scope of secondary propargylic acetates and primary amines is ***α-aryl andα-aliphatic propargylic acetates could react with either aromatic or aliphatic primary amines to give the corresponding N-aryl or N-aliphatic ethynylamines withα-aliphatic orα-aryl groups in over 90%ee for use in the next *** key to developing this one-pot sequence is to use a chelator triethylenetetramine(TETA)to mask the copper ion;to avoid its negative effect on Ag-catalyzed cyclization;whilst releasing PYBOX to activate the silver *** the methylidene moiety;these oxazolidinones can be readily *** value of the sequence is further shown by the catalytic enantioselective total synthesis of(–)-cytoxazone and the potent ezetimibe analogue.

关键词： CO_(2) 2-oxazolidinone tandem sequence propargylic amination carboxylative cyclization

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Fabrication of a novel Z-S-scheme photocatalytic fuel cell with the Z-scheme TiO_(2)/GO/g-C_(3)N_(4) photoanode and S-scheme BiOAc_(1−x)Br_(x)/BiOBr photocathode for TC degradation

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Journal of Materials Science & Technology 2024年第21期188卷 11-26页

作者： Tingting Yu Bing Yang Rong Zhang Chenyu Yang Arramel Jizhou Jiang School of Environmental and Chemical Engineering Jiangsu Ocean UniversityLianyungang 222005China School of Environmental Ecology and Biological Engineering Key Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationNovel Catalytic Materials of Hubei Engineering Research CenterWuhan Institute of TechnologyWuhan 430205China Nano Center Indonesia Jalan Raya PUSPIPTEKSouth TangerangBanten 15314Indonesia

The upsurge of interest in the emergence of photocatalytic fuel cell systems(PFC)presents an efficient and environmentally friendly approach to wastewater *** this work,a Z-scheme coupled with an S-scheme heterojunction electrode was used in the PFC,utilizing TiO_(2)/GO/g-C_(3)N_(4)as the photoanode and BiOAc_(1–x)Br_(x)/BiOBr as the *** systematically align the band structures between the anode and cathode,which facilitates the electron transfer between the *** attempt successfully demonstrates that collaborative power generation facilitates the high efficiency of tetracycline hydrochloride(TC)degradation at both *** photoanode achieved a 94.87%degradation rate for TC,while the photocathode exhibited a 96.33%degradation rate after 2 h,surpassing pristine BiOBr and BiOAc by factors of∼5.3 and∼3.8,***,this work proposed a mechanism for electron generation,transport,and pollutant degradation mechanism in the *** substances generated during the degradation of TC were analyzed through high-performance liquid chromatographymass spectrometry(HPLC-MS)and ultraviolet photoelectron spectroscopy(UPS),while the optimal degradation pathway was confirmed using density functional theory(DFT).The findings of this work establish the feasibility of efficiently degrading pollutants through PFC treatment,introducing a novel system where various heterojunctions in bipolar materials collaborate with photocatalysis to effectively generate electricity and enhance pollutant removal.

关键词： Photocatalytic fuel cell Wastewater purification S-scheme heterojunction Density functional theory

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Energy Performance Indicator (EnPI) Prediction of a Compressed Air System in a Can Manufacturing Factory 8

Energy Performance Indicator (EnPI) Prediction of a Compress...

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8th IEEE International Conference on Recent Advances and Innovations in engineering, ICRAIE 2023

作者： Kadir, Muhammad Hafizee Abdul Zakaria, Muhammad Aizat Fahmi, Muhamad Aqil Muqri Muhamad Midi, Nur Shahida Yusoff, Siti Hajar Hanifah, Mohd Shahrin Abu International Islamic University Malaysia Department of Electrical and Computer Engineering Kuala Lumpur Malaysia Berhad Process Development Engineering Department Selangor Malaysia

ISBN: (纸本)9798350315516

Greenhouse gas emissions and energy usage are increasing rapidly, posing a significant threat to the environment and the sustainability of the Earth. One of the ways to mitigate this issue is through the implementation of Energy Management Systems (EnMS) in industries, where overall efficiency improvement and energy expenditures cutback are targeted. This work aims to address the energy consumption in a can manufacturing factory. Here, machine learning approach is used to optimize the energy performance of the compressed air system (CAS) which is the major contributor to the factory's energy usage at 38%. In this work, the Energy Performance Indicators (EnPI) of the CAS is predicted using KNN by employing the variables from CAS itself. The collected variables are first analyzed using Dataiku software and correlation matrix and heatmap technique, giving two sets of key features. The predicted EnPI showed high accuracy when compared to the actual values. © 2023 IEEE.

关键词： Energy management systems

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Measurement and prediction of isothermal vapor–liquid equilibrium of a-pinene+camphene/longifolene+abietic acid+palustric acid+neoabietic acid systems

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Chinese Journal of Chemical engineering 2023年第1期53卷 155-169页

作者： Youqi Li Xiaopeng Chen Linlin Wang Xiaojie Wei Weijian Nong Xuejuan Wei Jiezhen Liang Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology School of Chemistry and Chemical EngineeringGuangxi UniversityNanning 530004China China Academy of Science and Technology Development Guangxi Branch Nanning 530022China Guangxi Sci-Tech Development Forest-like Technology Co.Ltd Nanning 530022China

The vapor–liquid equilibrium(VLE)data of a-pinene+camphene+[abietic acid+palustric acid+neoabietic acid]and a-pinene+longifolene+[abietic acid+palustric acid+neoabietic acid]systems at 313.15 K,333.15 K and 358.15 K were measured by headspace gas chromatography(HSGC).These data was compared with the predictions value by conductor-like screening model for realistic solvation(COSMO-RS).Moreover,the calculated data of COSMO-RS and Non-Random Two-Liquids(NRTL)models showed good agreement with the experimental *** was found that the three resin acids inhibited the volatility of a-pinene,camphene and longifolene and resulted in the decrease of total ***,HE(HB)contributes the most to the excess enthalpy and the hydrogen bonding interaction is the dominant intermolecular force of a-pinene,camphene and longifolene with the three resin *** addition,the geometric structures optimization and binding energy were obtained by the DFT to further illustrate the hydrogen bonding interaction and the effects of the addition of the three resin acids on the isothermal VLE.

关键词： Isothermal vapor–liquid equilibrium Headspace gas chromatography COSMO-RS model DFT

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