Effects of biochar-based catalyst preparation on oxidation degradation of Ni-EDTA

WANG Hongjie; GAO Yaguang; ZHAO Zilong; CHEN Guanhan; DONG Wenyi

doi:10.11949/j.issn.0438-1157.20171327

您当前的位置：

首页 >

文章列表页 >

Effects of biochar-based catalyst preparation on oxidation degradation of Ni-EDTA

更新时间：2025-12-10

- Effects of biochar-based catalyst preparation on oxidation degradation of Ni-EDTA
- CIESC Journal Issue 6, Pages: 2782-2789(2018)
- 作者机构：
  
  1. 哈尔滨工业大学深圳研究生院,广东,深圳,518055
  2. 深圳市水资源利用与环境污染控制重点实验室,广东,深圳,518055
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20171327
  CLC： 78
- Online First：05 June 2018，
  
  Published：05 June 2018
- 稿件说明：
移动端阅览
WANG Hongjie, GAO Yaguang, ZHAO Zilong, et al. Effects of biochar-based catalyst preparation on oxidation degradation of Ni-EDTA[J]. CIESC Journal, 2018, (6): 2782-2789.
DOI：

WANG Hongjie, GAO Yaguang, ZHAO Zilong, et al. Effects of biochar-based catalyst preparation on oxidation degradation of Ni-EDTA[J]. CIESC Journal, 2018, (6): 2782-2789. DOI： 10.11949/j.issn.0438-1157.20171327.

摘要

以胶原蛋白、木质素和硝酸铜为原料，采用共混热解法制备新型生物炭基铜系催化剂，通过多种表征手段考察制备方法和参数对催化湿式过氧化氢氧化（CWPO）处理Ni-EDTA模拟废液效果的影响，并阐述氧化降解过程中生物炭基铜系催化剂的失活机制。结果表明，相比溶液浸渍法，共混热解法有利于提高催化剂的催化活性，控制活性组分的均质分布和溶出释放，表现为Ni和TOC去除率分别增加13.05%和16.63%，Cu2+溶出量降低93.54%；在焙烧温度为800℃，Cu掺量为10%，胶原蛋白与木质素质量比例为1：3条件下，1000 mg·L-1 Ni-EDTA模拟废液经60 min催化氧化后Ni和TOC去除率分别达到65.41%和34.85%，Cu2+溶出量仅为1.7 mg·L-1。氧化降解过程中羧酸类中间降解产物的形成、活性组分反应性溶出和价态转变是致使催化剂失活的主要原因。

Abstract

Novel biochar-based catalysts using the lignin

collagen

and copper nitrate as raw materials were prepared by the co-pyrolysis method. Through the characterization by various techniques

the effects of preparation methods and process parameters on treatment of Ni-EDTA by catalytic wet hydrogen peroxide oxidation (CWPO) were investigated

and the deactivation mechanism of biochar-based catalyst was discussed. The results showed that the co-pyrolysis method was more favorable to the improvement of catalytic performance

homogeneous distribution and dissolution control of active component

exhibiting an increase of 13.05% and 16.63% in Ni and TOC removal efficiencies and a decline of 93.54% Cu leaching

respectively. Removal efficiencies of Ni (65.41%) and TOC (34.85%) were achieved after 60 min treatment at optimum conditions (i.e. calcination temperature of 800℃

Cu dosage of 10%

mass ratio of collagen to lignin of 1:3) and the corresponding leaching content of Cu was merely 1.7 mg·L-1. Besides

the deactivation mechanism of the biochar-based catalysts herein involved the formation of carboxylic acid intermediates

leaching and valence state transformation of copper.

关键词

Keywords

references

Views

127

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research progress on tuning the water resistance of lignin hydrodeoxygenation catalysts

Efficient catalytic hydrodeoxygenation of lignin derived phenolics on Ni-VOx interface

Research progress on catalytic methane reforming process

Research progress on improving thermal stability of polylactic acid based on stannous inactivation and chain end-group modification

Study of typical chemical cleavage during catalytic oxidation of lignin

Related Author

LI Xiang

MA Zhe

LI Zhenjing

LI Xinyue

HAN Yihang

CHAI Yongming

LIU Bin

LIU Dong

Related Institution

State Key Laboratory of Heavy Oil Processing, China University of Petroleum ( East China)

School of Chemical Engineering and Technology, China University of Mining and Technology

National Key Laboratory of Green and Low-Carbon Iron and Steel Metallurgy, University of Science and Technology

Zhejiang Honor Biomaterials Corporation Limited

Institute of Zhejiang University-Quzhou

⁰