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Nanobiochar for the remediation of contaminated soil and water:challenges and opportunities

Biochar 2023年第1期5卷 21-41页

作者： Mengyuan Jiang Lizhi He nabeel khan niazi Hailong Wang Williamson Gustave Meththika Vithanage Kun Geng Hua Shang Xiaokai Zhang Zhenyu Wang Institute of Environmental Processes and Pollution Control School of Environmental and Civil EngineeringJiangnan UniversityWuxi 214122China Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province Zhejiang A&F UniversityLin’an 311300China Institute of Soil and Environmental Sciences University of Agriculture FaisalabadFaisalabad 38040Pakistan Faculty of Science&Engineering Southern Cross UniversityLismoreNSW 2480Australia Biochar Engineering Technology Research Center of Guangdong Province School of Environmental and Chemical EngineeringFoshan UniversityFoshan 528000China School of Chemistry Environmental&Life SciencesUniversity of the BahamasNassau 4912Bahamas Ecosphere Resilience Research Centre Faculty of Applied SciencesUniversity of Sri JayewardenepuraNugegoda 10250Sri Lanka

Although research on biochar has received increasing attention for environmental and agricultural applications,the significance of nanobiochar for environmental pollutant remediation is poorly *** contrast to bulk biochar,nanobiochar has superior physicochemical properties such as high catalytic activity,unique nanostructure,large specific surface area and high mobility in the soil *** unique characteristics make nanobiochar an ideal candidate for pollution *** far,the research on nanobiochar is still in its infancy and most of the previous studies have only been conducted for exploring its properties and environmental *** lack of in-depth summary of nanobiochar’s research direction makes it a challenge for scientists and researchers *** in this review,we established some key fabrication methods for nanobiochar with a focus on its performance for the removal of pollutants from the *** also provided up-to-date information on nanobiochar’s role in environmental remediation and insights into different mechanisms involved in the pollutant ***,nanobiochar application is increasing,the associated drawbacks to the soil ecosystem have not received enough research ***,further research is warranted to evaluate the potential environmental risks of nanobiochar before large scale application.

关键词： Environmental pollution Nanotechnology Modified biochar Remediation Soil and water system

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Anion-regulation engineering toward Cu/In/MOF bimetallic electrocatalysts for selective electrochemical reduction of CO_(2) to CO/formate

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Materials Reports(Energy) 2022年第3期2卷 65-70页

作者： Bingqing Xu Israr Masood Ul Hasan Luwei Peng Junyu Liu Nengneng Xu Mengyang Fan nabeel khan niazi Jinli Qiao State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Environmental Science and EngineeringDonghua UniversityShanghai201620China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092China Institute of Soil and Environmental Sciences University of Agriculture FaisalabadFaisalabad38040Pakistan Department of Mechanical and Industrial Engineering University of TorontoTorontoOntarioM5S 3G8Canada

The conversion of carbon dioxide(CO_(2))into high-value added energy fuels and chemicals(CO,formate,C_(2)H_(4),etc.)through electrochemical reduction(eCO_(2)R)is a promising avenue to sustainable ***,low selectivity,barren activity and poor stability of the electrodes hinder the large-scale application of eCO_(2)***,we reported a copper-indium-organic-framework(CuIn-MOF)based high-performance catalyst for eCO_(2)***-trochemical measurement results reveal that CuIn-MOF exhibits high Faradaic efficiency(FE)of CO and formate(300 mV,FE_(CO)=78.6%at-0.86 V ***,FE_(HCOO^(-))=48.4%at-1.16 V ***,respectively)in a broad range of current density(20.1–88.4 mA cm^(-2))with long-term stability(6 h)for eCO_(2)R in 0.5 M KHCO_(3)electrolyte ***,through anion-regulation engineering,SO_(4)^(2-)anion precursor is more beneficial for the formic acid generation than NO_(3)^(-)anion precursor;while for SO_(4)^(2-)anion precursor,Cu plays a positive regulating role in eCO_(2)R to CO compared to ***,the high performance in a home-made eCO_(2)R reactor derives benefit from enhanced intrinsic activity and charge re-distribution can be attributed to the formation of In-doped Cu layer.

关键词： CuIn-MOF based Catalyst Anion-regulation engineering CO_(2)electroreduction CO/Formate production CO_(2)electrolyzer

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Removal of toxic elements from aqueous environments using nano zero-valent iron-and iron oxide-modified biochar:a review

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Biochar 2022年第1期4卷 779-799页

作者： Sabry M.Shaheen Ahmed Mosa Natasha Hamada Abdelrahman nabeel khan niazi Vasileios Antoniadis Muhammad Shahid Hocheol Song Eilhann E.Kwon Jörg Rinklebe Laboratory of Soil-and Groundwater-Management Institute of Foundation EngineeringWater-and Waste-ManagementSchool of Architecture and Civil EngineeringUniversity of WuppertalPauluskirchstraße 742285 WuppertalGermany Department of Arid Land Agriculture Faculty of MeteorologyEnvironmentand Arid Land AgricultureKing Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Soil and Water Sciences Faculty of AgricultureUniversity of KafrelsheikhKafr El-Sheikh 33516Egypt Soils Department Faculty of AgricultureMansoura UniversityMansoura 35516Egypt Department of Environmental Sciences COMSATS University IslamabadVehari CampusVehari 61100Pakistan Soil Science Dept. Faculty of AgricultureCairo UniversityGiza 12613Egypt Institute of Soil and Environmental Sciences University of Agriculture FaisalabadFaisalabad 38040Pakistan Department of Agriculture Crop Production and Rural Environment University of ThessalyFytokou Street38446VolosGreece Department of Environment Energy and GeoinformaticsUniversity of SejongGuangjin-GuSeoul 05006Republic of Korea Department of Earth Resources and Environmental Engineering Hanyang UniversitySeoul 04763Republic of Korea

Biochar(BC)has gained attention for removal of toxic elements(TEs)from aqueous media;however,pristine biochar often exhibits low adsorption ***,various modification strategies in BC have been developed to improve its removal capability against *** zero-valent iron(nZVI)and iron oxides(FeOx)have been used as sorbents for TE ***,these materials are prone to agglomeration and also expensive,which make their usage limited for large-scale *** nZVI technical demerits could be resolved by the development of BC-based composite sorbents through the loading of nZVI or FeOx onto BC *** zero-valent iron modified BC(nZVIBC),FeOx-modified BC(FeOxBC)have attracted attention for their capability in removing pollutants from the aqueous ***,a potential use of nZVIBC and FeOxBC for TE removal from aqueous environments has not been well-realized or *** such,this article reviews:(i)the preparation and characterization of nZVIBC and FeOxBC;(ii)the capacity of nZVIBC and FeOxBC for TE retention in line with their physicochemical properties,and(iii)TE removal mechanisms by nZVIBC and *** nZVI and FeOx in BC increases its sporptive capability of TEs due to surface modifications in morphology,functional groups,and elemental *** combined effects of BC and nZVI,FeOx or Fe salts on the sorption of TEs are complex because they are very specific to *** review identified significant opportunities for research and technol-ogy advancement of nZVIBC and FeOxBC as novel and effective sorbents for the remediation of TEs contaminated water.

关键词： Feedstock Engineered biochar Toxic metal(loid)s Biosorption Wastewater remediation

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Copper as a single metal atom based photo-,electro-,and photoelectrochemical catalyst decorated on carbon nitride surface for efficient CO_(2) reduction:A review

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Nano Research Energy 2022年第2期1卷 80-93页

作者： Lulu Li Israr Masood ul Hasan Farwa Ruinan He Luwei Peng Nengneng Xu nabeel khan niazi Jia-Nan Zhang Jinli Qiao State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Environmental Science and EngineeringDonghua UniversityShanghai 201620China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Institute of Soil and Environmental Sciences University of Agriculture FaisalabadFaisalabad 38040Pakistan College of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China

The processes of photocatalytic CO_(2) reduction(pCO_(2)R)and electrochemical CO_(2) reduction(ECO_(2)R)have attracted considerable interest owing to their high potential to address many environmental and energy-related *** this aspect,a single Cu atom decorated on a carbon nitride(CN)surface(Cu-CN)has gained increasing popularity because of its unique advantages,such as excellent atom utilization and ultrahigh catalytic ***-particularly graphitic CN(g-C_(3)N_(4))-is a photo-and electrocatalyst and used as an important support material for single Cu atom-based *** key functions of Cu-CN-based catalysts can improve the catalytic performance and stability in the pCO_(2)R and ECO_(2)R during the application *** this review,we focus on Cu as a single metal atom decorated on CN for efficient photoelectrochemical CO_(2) reduction(pECO_(2)R),where ECO_(2)R increases the electrocatalytic active area and promotes electron transfer,while pCO_(2)R enhances the surface redox reaction by efficiently using photogenerated charges and offering integral activity as well as an active interface between Cu and *** of single Cu atom-based photo-,electro-,and photoelectrochemical catalysts with g-C_(3)N_(4) are ***,for a deeper understanding of the history of the development of pCO_(2)R and ECO_(2)R,the basics of CO_(2) reduction,including pCO_(2)R and ECO_(2)R over g-C_(3)N_(4),as well as the structural composition,characterization,unique design,and mechanism of a single atom site are reviewed in ***,some future prospects and key challenges are discussed.

关键词： carbon dioxide single copper atom g-C_(3)N_(4) reduction

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Biochar and soil properties limit the phytoavailability of lead and cadmium by Brassica chinensis *** contaminated soils

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Biochar 2022年第1期4卷 1102-1116页

作者： Assa Albert Houssou Paramsothy Jeyakumar nabeel khan niazi Lukas Van Zwieten Xiang Li Lianxi Huang Lan Wei Xiaodong Zheng Qing Huang Yufen Huang Xianzhi Huang Hailong Wang Zhongzhen Liu Zhenrui Huang Key Laboratory of Plant Nutrition and Fertilizer in South Region Ministry of AgricultureGuangdong Key Laboratory of Nutrient Cycling and Farmland ConservationInstitute of Agricultural Resources and EnvironmentGuangdong Academy of Agricultural SciencesGuangzhou 510640China Environmental Sciences School of Agriculture and EnvironmentMassey UniversityPrivate Bag 11222Palmerston North 4442New Zealand Institute of Soil and Environmental Sciences University of Agriculture FaisalabadFaisalabad 38040Pakistan Wollongbar Primary Industries Institute NSW Department of Primary IndustriesWollongbarAustralia State Key Laboratory of Silkworm Genome Biology Chongqing 400715China Guangdong Provincial Engineering&Technology Research Center for Tobacco Breeding and Comprehensive Utilization Crops Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510640China Biochar Engineering Technology Research Center of Guangdong Province School of Environmental and Chemical EngineeringFoshan UniversityFoshan 528000China Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province Zhejiang A&F UniversityHangzhou 311300China

The current study investigated the effect of biochars derived from cinnamomum woodchip,garden waste and mulberry woodchip on soil phytoavailable lead(Pb),cadmium(Cd)pools,and their uptake by Chinese cabbage(Brassica chinensis L.).The biochars were produced at 450℃of pyrolysis *** contaminated soils were collected from Yunfu(clas-sified as Udept),Jiyuan(Ustalf)and Shaoguan(Udult)cities in China at the depth of 0-20 cm and amended with biochars at the rate of 3%w/*** mixing the soil with biochar for 14 days,the Chinese cabbage was planted in the amended ***,it was harvested on the 48th day after sowing *** Udult soil,Chinese cabbage died 18 days after sowing period in control and soils amended with cinnamomum and mulberry *** only plants grown with the garden waste biochar treatment survived in Udult soil,amendment of garden waste or mulberry biochars at 3%w/w(450℃)to Udult soil significantly increased(4.95-6.25)soil pH compared to other biochar *** Udept and Ustalf soils,the application of garden waste and mulberry biochars significantly improved plant biomass compared to control,albeit it was dependent on both biochar and soil *** waste biochar significantly decreased soil Cd phytoavailable concentration by 26%in the Udult soil,while a decrease of soil Cd phytoavailable concentration by 16%and 9%was observed in Ustalf and Udept soils,*** available phosphorus in biochar and soil pH were important factors controlling toxic metal phytouptake by the ***,the amendment of soil with biochar at 3%can effectively reduce the mobility of Cd and Pb in soil and plant ***,biochar and soil properties should be well-known before being used for soil toxic metal immobilization.

关键词： Contaminant Feedstock Available P Soil pH,heavy metal

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