Manganese-Modified Barley Straw Biochar

Activates PMS for efficient enrofloxacin degradation

Derived from plateau barley straw with optimized Mn loading and pyrolysis temperature, it outperforms wheat straw biochars in activating peroxymonosulfate.

Da, Wang · Miao, Zhang · Xie, Qingjie · Han, Song · Xiao, Sisi · Wang, Huijuan

Chemical Engineering Research and Design 2025

Specifications

Optimal pyrolysis temperature
{'zh': '900', 'en': '900'} °C
Optimal straw-to-Mn mass ratio
{'zh': '1:1', 'en': '1:1'}

Advantages

Locally available feedstock

Uses locally abundant barley straw, eliminating raw material transport costs.

Outperforms wheat straw biochar

Manganese-modified biochar from barley straw shows higher PMS activation and ENR degradation than those from Xizang wheat straw and Henan wheat straw.

Identified degradation mechanism

Quenching and EPR confirm generation of SO4·-, ·OH, ·O2-, and 1O2 that act synergistically.

Proposed pathways and toxicity assessment

Four possible degradation pathways are proposed and toxicity analysis predictions support process validity.

Applications