Sucrose-Montmorillonite Hydrochar

Efficient PMS activation for herbicide degradation

A composite produced by co-hydrothermal carbonization of sucrose and montmorillonite, enabling high degradation of quinclorac in soil via peroxymonosulfate activation while reducing phytotoxicity.

Zhengyun, Zhang · Qianrong, Li · Ma, Guolan · Xuguo, Zhou · Wang, Yanhui · Liu, Kailin · Caihong, Li · Ding, Chunxia · Liu, Xiangying

Journal of Industrial and Engineering Chemistry 2026

Specifications

Quinclorac degradation efficiency

{'zh': '88.19', 'en': '88.19'} %

Advantages

Enhanced degradation

SUCH4@MMT exhibited enhanced peroxymonosulfate activation efficiency compared to pure sucrose hydrochar, achieving 88.19% degradation of quinclorac in soil within 12 h.

Less toxic byproducts

The degradation intermediates were much less toxic than quinclorac, with significant reduction in quinclorac-induced phytotoxicity to tomato plants.

Diverse reactive species

Surface features including sp2 carbon, carbonyl groups, and carbon defects contributed to PMS activation, producing SO4•−, •OH, O2•−, and 1O2.

Applications

• Pesticide residue remediation：For degrading quinclorac residues in paddy fields to protect subsequent crops.
• Soil remediation：Directly added with PMS to contaminated soil for in-situ oxidative degradation.
• Crop safety：Reducing phytotoxicity of residues to sensitive crops like tomato.
• Environmental monitoring：Tracking degradation products via UPLC-QTOF-MS for risk assessment.