文献类型：期刊文献

英文题名：Enhanced organic pollutant and AOX degradation of lignin-biochar/ ZnAl2O4/BiPO4 with adsorption-photocatalysis synergy: Roles of lignin-biochar

作者：Li, Xiang[1,2,3,4] Pan, Aixiang[2,3,4] Liang, Fangmin[1,2,3,4] Wang, Jiejie[5] Tian, Qingwen[1,2,3,4] Yang, Qiang[2,3,4] Zhu, Yawei[2,3,4] Guo, Wenliang[6] Zhang, Jian[1] Fang, Guigan[2,3,4]

第一作者：Li, Xiang

通信作者：Tian, QW[1];Tian, QW[2];Tian, QW[3];Tian, QW[4]

机构：[1]Guangxi Univ, Coll Light Ind & Food Engn, Guangxi Key Lab Clean Pulp & Papermaking & Pollut, Nanning 530004, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[3]Natl Forestry & Grassland Adm, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Key Lab Chem Engn Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[4]Natl Engn Lab Biomass Chem Utilizat, Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[5]Nanjing Univ Aeronaut & Astronaut, Nanjing 211106, Peoples R China;[6]Nanjing Kuanta Informat Technol Co Ltd, Nanjing 211100, Peoples R China

年份：2024

卷号：1303

外文期刊名：JOURNAL OF MOLECULAR STRUCTURE

收录：;EI(收录号：20240415431197);Scopus(收录号：2-s2.0-85182898141);WOS:【SCI-EXPANDED(收录号:WOS:001170216900001)】；

基金：The Project Supported by the Foundation (No. 2021KF13) of Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University.

语种：英文

外文关键词：Lignin-biochar; BiPO 4; Adsorption; Photocatalysis

摘要：In this work, lignin-biochar (LC)/ZnAl2O4/BiPO4 with adsorption and photocatalysis synergy were fabricated through hydrothermal process. The roles of lignin-biochar on the crystalline structure, shape and photoelectrochemical capacities of LC/ZnAl2O4/BiPO4 were carried out by X-ray power diffractometer pattern (XRD), X-ray photoelectron spectroscopy (XPS), ultraviolet -visible diffusion reflectance spectra (UV-Vis DRS), photoluminescence spectra (PL), transmission electron microscope (TEM), scanning electron microscope (SEM), electrochemical impedance and transient photocurrent measurements. Photocatalytic experiment showed that the adsorption and photocatalytic efficiencies of ZnAl2O4/BiPO4 were greatly boosted with the introduced ligninbiochar, which is owing to its higher surface specific area, larger aromatic ring structure and superior electron transmission capacity. The highest kinetic constant of LC/ZnAl2O4/BiPO4 on the MB degradation is 2.1342 h-1 under UV illumination, increased by 5.52 -fold for BiPO4 and 2.23 -fold for ZnAl2O4/BiPO4, respectively. Meanwhile, the LC/ZnAl2O4/BiPO4 composites display excellent performance in the bamboo pulp bleaching wastewater treatment, and the CODCr and AOX removals of the wastewater are 65.2 % and 69.2 %, respectively. The lignin-biochar in the composites can not only enhance the adsorption of pollutant in the wastewater, but accept the photo -generated electrons from the semiconductor, leading to an enrichment of the pollutant and accelerated separation of electrons -holes pairs, ultimately enhancing the photocatalytic activities. The superior adsorption and photocatalytic efficiency of lignin-biochar-based composite makes it a promising candidate for the elimination of refractory pollutant in the industrial wastewater.