The activated carbon has been produced from Sunan candlenut shells wastes produced by chemical activation using potassium hydroxide as an activating agent. The activated carbon has been characterized by Brunauer-Emmett-Teller (BET), X-Ray Diffraction (XRD), Scanning Electron Microscope-Energy Dispersive X-Ray (SEM-EDX), Fourier-TransformInfrared (FT-IR), and the results compared with those of the Sunan candlenut shell used as raw material. The activatedcarbon produced used as an adsorbent in the Rhodamine B adsorption process. Several examined factors that can affect theadsorption process, such as pH, contact time, and adsorbate concentration, have been studied. The yield of activated carbonfrom Sunan candlenut shells obtained is 74.05%. The activated carbon with the chemical process has characteristicadsorption-desorption isotherms of type IV with mesoporous pore size. The surface area of activated carbon of 355.563 m2/gand the pore size of 2.1258 nm. The functional groups from FTIR contain C≡C and C=O at a wave number of 2161.55 cm-1and 1980-1994 cm-1, respectively. The results also show the percent adsorption of rhodamine B is 98.75% and the initialmaximum adsorbate concentration of 30 ppm at pH 4 for 60 minutes.

中文翻译：

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苏南核桃壳活性炭：罗丹明 B 的制备、表征和应用吸附

活性炭是由使用氢氧化钾作为活化剂化学活化产生的苏南核桃壳废料制成的。活性炭已通过 Brunauer-Emmett-Teller (BET)、X 射线衍射 (XRD)、扫描电子显微镜-能量色散 X 射线 (SEM-EDX)、傅里叶变换红外 (FT-IR) 和结果与以苏南核桃壳为原料的结果进行了比较。生产的活性炭在罗丹明 B 吸附过程中用作吸附剂。已经研究了几个可以影响吸附过程的检查因素，例如 pH 值、接触时间和吸附物浓度。得到的苏南板栗壳活性炭收率为74.05%。具有化学过程的活性炭具有具有中孔孔径的IV型特征吸附-解吸等温线。活性炭的表面积为355.563 m2/g，孔径为2.1258 nm。FTIR 的官能团包含 C≡C 和 C=O，波数分别为 2161.55 cm-1 和 1980-1994 cm-1。结果还显示罗丹明 B 的吸附百分比为 98.75%，在 pH 4 下 60 分钟的初始最大吸附物浓度为 30 ppm。