Activated carbonaceous were prepared from high-carbon, abandoned straw biomass. With hydrogen sulfide gas as the target pollutant, single factor experiments were employed to assess the effects of activator type, activation temperature, activation time, and liquid-material ratio on the adsorption performance of the prepared carbonaceous adsorbent. The materials were characterized using elemental analysis, SEM, FTIR, and BET. The results showed -OH, -CH-, and -C = O groups exist on the surface of the prepared adsorbent, specific surface area can reach 1104.84 m²•g⁻¹, total pore volume can reach 0.261 cm³•g⁻¹ and, where the pore volume is greater than 80%, well-developed pore structures were present that facilitated adsorption. The experimental results showed the adsorption time could reach 198 min with optimal ZnCl₂ activator concentration (30%), carbonization temperature (550°C), and liquid-to-material ratio (3:1). Compared with the existing activated carbon adsorbents, the adsorption effects and preparation cost of this absorbent are advantageous, and the absorbent has prospects for broad market application.

Implications

Activated carbons were prepared from high-carbon, abandoned straw biomass. With hydrogen sulfide gas as the target pollutant, single factor experiments were employed to assess the effects of activator type, activation temperature, activation time, and liquid-material ratio on the adsorption performance of the prepared carbonaceous adsorbent. The materials were characterized using elemental analysis, SEM, FTIR, and BET. Compared with the existing activated carbon adsorbents, the adsorption effects and preparation cost of this absorbent are advantageous, and the absorbent has prospects for broad market application.

中文翻译：

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秸秆中含碳吸附剂的制备及其对H2S去除的吸附性能。

活性碳由高碳的废弃秸秆生物质制得。以硫化氢气体为目标污染物，采用单因素实验评价了活化剂类型，活化温度，活化时间和液料比对制备的含碳吸附剂吸附性能的影响。使用元素分析，SEM，FTIR和BET对材料进行表征。结果表明，所制备吸附剂表面存在-OH，-CH-和-C = O基，比表面积可达到1104.84 m ² •g ^-1，总孔容可达到0.261 cm ³ •g ^-1当孔体积大于80％时，存在发达的孔结构，可促进吸附。实验结果表明，最佳的ZnCl ₂活化剂浓度（30％），碳化温度（550°C）和液-料比（3：1）下，吸附时间可达198min 。与现有的活性炭吸附剂相比，该吸收剂的吸附效果和制备成本是有利的，并且该吸收剂具有广阔的市场应用前景。

含义

活性炭由高碳的废弃秸秆生物质制得。以硫化氢气体为目标污染物，采用单因素实验评价了活化剂类型，活化温度，活化时间和液料比对制备的含碳吸附剂吸附性能的影响。使用元素分析，SEM，FTIR和BET对材料进行表征。与现有的活性炭吸附剂相比，该吸收剂的吸附效果和制备成本是有利的，并且该吸收剂具有广阔的市场应用前景。