Biochar is a bioresidue generated from heating biomass under oxygen limited conditions, resulting in a porous material which nowadays is widely used for the removal of pollutants from soil and water. Therefore, the purpose of this study was to investigate the effects of temperature on the adsorption of atrazine onto biochar, and evaluate the mathematic kinetic model underlying the adsorption of atrazine. The Biochar was produced by pyrolyse process (450℃, for 2 h) using pine wood waste materials-Pine Wood derived Biochar (PWB). The PWB sample was grounded to pass through a <0.6 mm sieve. The characterization of the external surface morphology of PWB was performed by a field emission scanning electron microscope (SEM) and the functional groups present in each biochar sample before and after the absorption experiments were determined using Fourier transform infrared (FTIR) spectroscopy. Each batch experiment was performed in duplicates. The effect of temperature on the adsorption of atrazine onto biochar was determined by controlling the change in the pesticide concentration with time by using a high performance liquid chromatography (HPLC). Several kinetic models were tested to fit the data. The SEM showed that the surface of PWB appeared to be smooth with shallow holes. The pores shapes look circular and well distributed on the whole surface of the biochar. The FTIR analysis after adsorption revealed the appearance of different numbers of peaks with different intensities (low and high intensities) suggesting combinations of chemical functional groups on biochar with atrazine herbicide. The change in band intensity at 1775 cm-1 was most prominent after PWB was exposed to atrazine. The adsorption capacity increased with increasing temperature (0.4942, 0.7301, 1.0986 mg·g-1 for temperatures of 10, 18 and 27℃, respectively), suggesting an endothermic process. Chemical adsorption mechanism was also found to play a dominant role in the adsorption of atrazine to biochar. Therefore, PWB may have a great potential in removing atrazine from the environment at different climatic conditions.%生物质炭是一种由生物质在缺氧条件下加热制成的生物残渣，因其本身的多孔性被广泛用于土壤以及水体中的污染物的去除。文章着重研究了温度对于生物质炭吸附阿特拉津的影响，同时采用改进的Freundlich模型以及颗粒内部扩散模型对吸附过程进行了评估，并在此基础上建立了生物质炭对阿特拉津吸附数学动力学模型。使用的生物质炭以废弃松木为原材料（Pine Wood derived Biochar, PWB）在450℃、缺氧条件下热解两小时制成（研磨过30目筛）。试验通过扫描电子显微镜、傅里叶变换红外光谱等手段对生物炭的外部表面形态以及生物炭样品吸附阿特拉津前后表面官能团的变化进行表征。采用批量试验方法，定时取样，并通过高效液相色谱测定阿特拉津浓度变化来说明温度对生物炭吸附阿特拉津效果的影响，并拟合相对应的吸附动力学模型。SEM实验表明PWB表面为光滑的浅孔，气孔呈圆形并均匀分散于整个生物质炭表面。吸附反应后的傅里叶红外光谱表明，许多表面峰出现了一定强度的波动，说明反应过程中生物炭与阿特拉津的化学官能团高度结合，在PWB吸附阿特拉津后1775 cm-1处的谱带强度变化最为突出。生物质炭对阿特拉津的吸附能力随反应温度的升高而升高，当温度为10、18和27℃时，其吸附容量分别为0.4942、0.7301、1.0986 mg·g-1，结果表明该吸附过程是吸热反应。通过测定吸附过程中的活化能，确定化学吸附在生物质炭吸附阿特拉津过程中起主导作用。实验结果表明，PWB 在不同的温度条件下对于环境中阿特拉津的去除有很好的应用前景，对阿特拉津污染水的治理除具有一定的参考价值。
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