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Development of cation exchanger-based nano-CdS hybrid catalyst for visible-light photodegradation of rhodamine B from water

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Science China Chemistry 2012年第3期55卷 409-415页

作者： XIE YingMei LV Lu LI MingHui pan bingcai CHEN Qun ZHANG WeiMing ZHANG QuanXing State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing UniversityNanjing 210093China National Engineering Center for Organic Pollution Control and Resource Reuse(Suzhou Division) Suzhou High-Tech Institute of Nanjing UniversitySuzhou 215123China School of Chemistry and Chemical Engineering Changzhou UniversityChangzhou 213164China

A new polymeric nanocomposite photocatalyst A15-CdS with large spherical beads (0.70-0.80 mm in diameter) was fabricated for efficient Rhodamine B (RhB) photodegradation with facile separation during cyclic runs,and photocorrosion,a congenital drawback of CdS,was successfully inhibited for *** nanocomposite catalyst was obtained by impregnating CdS nanoparticles within porous polymeric cation exchanger A15 through a facile inner-surface *** nanoparticles (<20 nm) immobilized in A15 were deliberately distributed within an outside ring-like region of 40-50 m in depth,which is dominant for photoreaction because visible light is not expected to permeate through the inner region of nontransparent *** expected,efficient RhB photodegradation by A15-CdS was achieved under visible light irradiation,and large-size A15-CdS beads are expected to result in their facile separation from solution for repeated *** significantly,negligible photocorrosion for the hybrid catalyst A15-CdS was demonstrated by the constant photodegradation efficiency and negligible CdS loss during five-cycle *** results indicated that nano-CdS immobilization within A15 would greatly improve the applicability of CdS nanoparticles in practical environmental remediation.

关键词： nanocomposite catalyst CdS photocorrosion inhibition dye degradation visible light

Recyclable polymer-based nano-hydrous manganese dioxide for highly efficient Tl(I) removal from water

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Science China Chemistry 2014年第5期57卷 763-771页

作者： pan bingcai WAN ShunLi ZHANG ShuJuan GUO QingWei XU ZhengCheng LV Lu ZHANG WeiMing State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University National Engineering Center for Organic Pollution Control and Resource Reuse (Suzhou Division) Suzhou High-Tech Institute of Nanjing University South China Institute of Environmental Science Ministry of Environmental Protection

TI（I） in water even at a trace level is fatal to human beings and the ecosystem. Here we fabricated a new polymer-supported nanocomposite （HMO-001） for efficient TI（I） removal by encapsulating nanosized hydrous manganese dioxide （HMO） within a polystyrene cation exchanger （D-001）. The resultant HMO-001 exhibited more preferable removal of TI（I） than D-001 and IRC-748, an iminodiacetic chelating polymer, particularly in the presence of competing Ca（II） ions at greater levels in solution. Such preference was ascribed to the Donnan membrane effect caused by D-001 as well as the specific interaction between TI（I） and HMO. The adsorbed TI（I） was partially oxidized into insoluble TI（III） by HMO at acidic pH, while negligible oxidation was observed at circumneutral pH. The exhausted HMO-001 was amenable to efficient regeneration by binary NaOH-NaC10 solution for at least 10-cycle batch runs without any significant capacity loss. Fixed-bed column test of Tl（I）-contained indus- trial effluent and natural water further validated that TI（I） retention on HMO-001 resulted in a conspicuous concentration drop from 1.3 mg/L to a value lower than 0.14 mg/L （maximum concentration level for industrial effluent regulated by US EPA） and from 1-4 μg/L to a value lower than 0.1 μg/L （drinking water standard regulated by China Health Ministry）, respectively.

关键词： manganese dioxide nanocomposite thallium water treatment

Preparation of polymer-supported hydrated ferric oxide based on Donnan membrane effect and its application for arsenic removal

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Science China Chemistry 2008年第4期51卷 379-385页

作者： ZHANG QingJian pan bingcai CHEN XinQing ZHANG WeiMing pan BingJun ZHANG QuanXing L.LV X.S.ZHAO State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210093China Department of Chemical and Biomolecular Engineering National University of Singapore10 Kent RidgeSingapore 119260Singapore 不详

In the present study a novel technique was proposed to prepare a polymer-supported hydrated ferric oxide (D201-HFO) based on Donnan membrane effect by using a strongly basic anion exchanger D201 as the host material and FeCl3-HCl-NaCl solution as the reaction environment. D201-HFO was found to exhibit higher capacity for arsenic removal than a commercial sorbent Purolite ArsenX. Furthermore, it presents favorable adsorption selectivity for arsenic removal from aqueous solution, as well as satis- factory kinetics. Fixed-bed column experiments showed that arsenic sorption on D201-HFO could re- sult in concentration of this toxic metalloid element below 10 μg/L, which was the new maximum con- centration limit set recently by the European Commission and imposed by the US EPA and China. Also, the spent D201-HFO is amenable to efficient regeneration by NaOH-NaCl solution.

关键词： hydrated ferrous oxide anion exchanger Donnan membrane effect arsenic sorption

Confinement of Fe atoms between MoS_(2) interlayers drives phase transition for improved reactivity in Fenton-like reactions

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Nano Research 2024年第3期17卷 1132-1139页

作者： Yibing Sun Yu Zhou Hongchao Li Chuan Wang Xuan Zhang Qian Ma Yingchun Cheng Jieshu Qian bingcai pan Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China Key Laboratory of Flexible Electronics and Institute of Advanced Materials Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech UniversityNanjing 211816China Department of General Dentistry Affiliated Stomatological Hospital of Nanjing Medical UniversityJiangsu Province Key Laboratory of Oral DiseasesNanjing 210029China Research Center for Environmental Nanotechnology(ReCENT) State Key Laboratory of Pollution Control and Resources ReuseSchool of EnvironmentNanjing UniversityNanjing 210023China

Phase manipulation of MoS_(2) from thermodynamically stable 2H phase to the unstable but more reactive 1T phase represents a crucial strategy for improving the reactivity in many *** widely adopted wet chemistry approach uses intercalating entities especially alkali metal ions to achieve the phase transition;however,these entities are normally inert for the target ***,we describe the first use of iron atoms for the intercalation of 2H-MoS_(2) layers,driving the partial transition from 2H to 1T ***,in the peroxymonosulfate(PMS)-based Fenton-like reactions,the interlayered confinement of Fe atoms not only activates the inert basal plane,but also adds more reactive Fe sites for the formation of metal-PMS complex as primary reactive species for pollutant *** the degradation of a model pollutant carbamazepine(CBZ),the Fe-intercalated MoS_(2) exhibits a first order rate constant 13.3 times higher than 2H-MoS_(2).This strategy is a new direction for manipulating the phase composition and boosting the catalytic reactivity of MoS_(2)-based catalysts in various scenarios,including environmental remediation and energy applications.

关键词： confinement MoS_(2) Fe atoms Fenton-like reactions hydrogen evolution reaction

TREATMENT AND RESOURSE REUSE OF INDUSTRIAL WASTEWATER FROM PRODUCTION PROCESS OF PHENYL ACETIC ACID

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Chinese Journal of Reactive Polymers 1999年第1期8卷 82-89页

作者： pan bingcai CHEN Jinlong ZHANG Quanxing WANG Yong State Key Laboratory of Pollution Control & Resource Reuse Department of EnvironmentalScience & Engineering Nanjing University Nanjing 210093 P R. China

The effluent from phenyl acetic acid (PhCH2COOH) production process can betreated with NDA-999 macroporous polymeric adsorbent with about 100% removalefficiency of PhCH2COOK benzyl alcohol (PhCH2OH)and benzaldehyde (PhCHO) aswell as the decrease in Total Organic Carbon (TOC)from 4691mg/l to <300mg/L. 3. 7kgPhCH2COOH and 120kg NaCl will be recovered from per m3 wastewater and theadsorbent can be reused after being regenerated by NaOH aqueous solution andmethanol. Good economic, social and environmental results can be achieved with thismethod.

关键词： phenyl acetic acid polymeric adsorbent adsorption wastewater treatment

STUDY ON THE TREATMENT OF INDUSTRIAL WASTEWATER CONTAINING TRIETHYLAMINE WITH POLYMERIC ADSORBENTS

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Chinese Journal of Reactive Polymers 2000年第2期9卷 174-180页

作者： LV Lu pan bingcai ZHANG Weiming CHEN Jinlong ZHANG Quanxing The State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210093P.R.China

The treatment of the industrial wastewater, in which the concentration of triethylamine (TEN) and CODcr was around 3450 mg/L and 22400 mg/L respectively, was studied by adsorption of macroporous resins. Results demonstrate that the polymeric adsorbent CHA-111 has excellent effect on the adsorption and desorption of TEN. The concentration of TEN in the effluent is less than 30mg/L, and the removal efficiency of TEN and total CODcr exceed 99% and 95% respectively. The accumulation and resource reuse of TEN can be realized in this process.

关键词： Adsorption Polymeric adsorbent Triethylamine Wastewater treatment

SORPTION OF PHENOL AND P-NITROPHENOL ONTO A WEAKLY ANION EXCHANGER: XPS ANALYSIS AND MECHANISM

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Chinese Journal of Reactive Polymers 2005年第1期14卷 44-51页

作者： LI Xiaotao pan bingcai pan Bingjun Zhang Weimin Meng Fanwei Chen Jinlong Zhang Quanxing State Key Laboratory of Pollution Control and Resources Reuse School of the Environment Nanjing University Nanjing 210093 China Department of Science and Technology State Environmental Protection Agency Beijing 100035 China

X-ray photoelectron spectroscopy(XPS)was adopted to elucidate sorption mechanism of phenol and p-nitrophenol onto a weakly anion exchanger *** distribution of specific forms of tertiary amino group on D301 was obtained and effect of free tertiary amino group on phenol sorption onto D301 was discussed. The result indicated that the percent of the protonated tertiary amine group on polymeric matrix was much lower than the reference compound N,N-dimethylbenzylamine at an identical pH value in solution due to the much lower activity degree of hydrogen ion in inner resin phase than in the external solution. Less free amino group on D301 results in less sorption capacity of phenol and p-nitrophenol in an acidic solution. Under the experimental conditions both phenol sorption onto D301 can be explained as solid extraction and the distribution coefficient varies linearly with the content of free amino group on D301.

关键词： XPS, Anion exchanger Phenolic compounds Sorption mechanism.

THEATMENT OF WASTEWATER FROM PRODUCTION PROCESS OF 2,3-ACID

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Chinese Journal of Reactive Polymers 1999年第1期8卷 68-75页

作者： FENG Wenguo ZHANG Quanxing CHEN Jinlong XU Zhaoyi pan bingcai SU Xing Dept. of Environ. Sci. & Techn. Nanjing Univ ersity Nanjing 210093 China Ditong Chemical Corporation Suzhou 215124

Wastewater from production process of 2,3-acid was treated by adsorption usingmacroporous resin NDA-708. After only one-step treatment by resin adsorption, removalefficiency of three kinds of naphthalene chemicals was above 99%, removal efficiency ofCODcr was above 96% Under proper operating condition, desorption efficiency wasaround 100%. The running records of the industrial facility showed that the naphthlenechemicals in desorption effluent could be reused without obvious influence on the qualityOf the product.

关键词： 2,3-acid wastewater treatment adsorption polymeric adsorbent

Publication scope and priorities of FESE in an evolving world: An editorial update and perspective

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Frontiers of Environmental Science & Engineering 2024年第1期18卷 169-171页

作者： Deng Shubo Jin Rencun Liang Sai Liu Fudong Liu, Jinyong Lyu Lai Ning Daliang pan bingcai van Hullebusch Eric Wang, Bin Wen Xianghua Kang, Xiao Xu, Elvis Genbo Yang, Hong Qi, Ying Zhan Xinmin Zhao Dongye

Frontiers of Environmental Science&Engineering(FESE)is one of the flagship journals of the Chinese Academy of *** is an international peer-reviewed journal that publishes cutting-edge scientific work in all aspects of environmental *** 2007,FESE has been an important platform for communicating the cutting-edge progress of theories,methods,technologies,and policies in environmental science and *** authors and readers involve scientists,engineers,and policymakers that are important stakeholders in dealing with environmental *** authors are encouraged to review recent issues of FESE to gain a deep understanding of the topics that are of great interest to the journal’s *** the cover letter,please clearly state the relevance to the journal’s publication scope and *** particular,prospective authors are directed to the following instructions for further details on the scope,novelty and quality expectations,and minimum requirements.

关键词： journal please dealing