Tailored design of food waste hydrochar for efficient adsorption and catalytic degradation of refractory organic contaminant
Tailored design of food waste hydrochar for efficient adsorption and catalytic degradation of refractory organic contaminant
复制标题
食物垃圾水炭的定制设计，用于有效吸附和催化降解难降解的有机污染物
DOI：
10.1016/j.jclepro.2021.127482
复制
发表时间：
2021-08
影响因子：
11.1
通讯作者：
Daniel C.W. Tsang
中科院分区：
文献类型：
--
作者：
Yuyan Liu;Yuqing Sun;Zhonghao Wan;Fanqi Jing;Zhixiong Li;Jiawei Chen;Daniel C.W. Tsang
Custom-designed carbonaceous adsorbent/catalyst from ‘green’ sources with desired functionalities under science-informed conditions is indispensable to promote the sustainable industrial wastewater treatment. In this study, we prepared hydrochar by hydrothermal carbonization (HTC) of three types of pre-consumer food waste (i.e., lettuce, taro, and watermelon peel) with different components at various temperatures (i.e., 180–240 °C). The performance of food waste hydrochar was examined through the adsorptive removal and peroxymonosulfate (PMS)-initiated catalytic degradation of a representative, recalcitrant organic contaminant, 2,4-dichlorophenoxy acetic acid (2,4-D). The LHC180−240derived from fibre-rich lettuce manifested a substantial 2,4-D adsorption (77.4–88.4 mg g−1) possibly due to intensive partitioning and/or chemisorption, which were dependent on the mesoporous carbon structure with low aromaticity and abundant C–O functional groups. In comparison, HTC of starch-rich taro at a relatively low temperature (200 °C) produced the THC200that displayed a superior catalytic ability (73.5 mg g−1) probably owing to a highly graphitized C domain with low polarity and enriched ketonic (Cdouble bondO) functionality, which might facilitate radical/non-radical PMS activation. Interestingly, the WHC180−240produced from watermelon peel with moderate-level carbohydrates and low-fibre content presented an improved structure and functional groups (i.e., C–O and Cdouble bondO), but inhibited the PMS activation for 2,4-D degradation possibly due to interference by its inherent dissolved organic matter (1.13–2.26wt.%). This study provided insightful guidance for tailoring future design of multifunctional hydrochar adsorbent/catalyst for sustainable remediation.
登录
查看更多内容
影响因子：
8.9
作者：
Yuyan Liu;S. Sohi;Fanqi Jing;Jiawei Chen
通讯作者：
Yuyan Liu;S. Sohi;Fanqi Jing;Jiawei Chen
影响因子：
3.2
作者：
Bide Zhang;M. Heidari;Bharat Regmi;Shakirudeen A. Salaudeen;Precious Arku;Mahendra Thimmannagari;
通讯作者：
Bide Zhang;M. Heidari;Bharat Regmi;Shakirudeen A. Salaudeen;Precious Arku;Mahendra Thimmannagari;
影响因子：
6
作者：
Benavente, Veronica;Calabuig, Emilio;Fullana, Andres
通讯作者：
Fullana, Andres
影响因子：
2.7
作者：
Ferrentino, Roberta;Ceccato, Riccardo;Fiori, Luca
通讯作者：
Fiori, Luca
影响因子：
9.8
作者：
Zhonghao Wan;Yuqing Sun;Daniel C W Tsang;I. K. Yu;Jiajun Fan;J. Clark;Yaoyu Zhou;Xinde Cao
通讯作者：
Zhonghao Wan;Yuqing Sun;Daniel C W Tsang;I. K. Yu;Jiajun Fan;J. Clark;Yaoyu Zhou;Xinde Cao