In this paper, the simple and low-cost water extraction way was used to acquisition Betel leaves extracts (BLE). The water as the extraction solvent has the characteristics of low price, environmentally friendly, and good solubility for other extraction solvents. BLE was researched as an environmental-friendly inhibitor via various experimental methods and theoretical calculations. Electrochemical experiments manifest that BLE can restrain reactions of the cathode and anode of Q235 steel. The BLE concentration was 400 mg/L, the anti-corrosion efficiency was close to 94%. The experimental data show that BLE can show high-quality anti-corrosion nature for Q235 steel immersing in 1 M hydrochloric acid (HCl) environment at a certain temperature range. The morphology maps of scanning electron microscope (SEM) and atomic force microscopy (AFM) strongly proves the data of electrochemical experiments. In addition, the BLE adsorption at the Q235 steel surface belongs to the Langmuir mono-layer adsorption. Quantum chemical calculations (QCC) and molecular dynamics simulations (MDS) effectually manifest that BLE can show decent anti corrosion character.

本文采用简单，低成本的水提取方式收购槟榔叶提取物（BLE）。作为萃取溶剂的水具有价格低廉，环境友好和对其他萃取溶剂的良好溶解性的特征。通过各种实验方法和理论计算，对BLE作为一种环保型抑制剂进行了研究。电化学实验表明，BLE可以抑制Q235钢的正极和负极反应。BLE浓度为400 mg / L，防腐效率接近94％。实验数据表明，对于在一定温度范围内浸入1 M盐酸（HCl）的Q235钢，BLE可以表现出高质量的防腐性能。扫描电子显微镜（SEM）和原子力显微镜（AFM）的形貌图有力地证明了电化学实验的数据。此外，Q235钢表面的BLE吸附属于Langmuir单层吸附。量子化学计算（QCC）和分子动力学模拟（MDS）有效地表明BLE可以表现出良好的抗腐蚀性能。