酒，乃天地之精华，文化之载体，品一杯佳酿，如同品一段历史，品一份人生。白酒在各种场合中发挥着重要作用，它不仅仅是一种饮品，还寄托着人们对美好生活的向往和追求。本文采用生动形象的对话形式，通俗易懂地描述了白酒酿制的五个主要过程——选料、糖化、发酵、蒸馏和陈酿，重点介绍了其中的主要化学成分以及酿制过程中的化学反应，白酒的酿造过程体现了匠心独运的精神以及酒文化的博大精深。通过品味白酒，可以更好地感悟人生的哲理和智慧。好酒需要陈放才能更加醇香，人生也需要经历岁月的沉淀才能更加丰富多彩。

A metal - free photocatalyst was developed and synthesized through a single - step thermal treatment process involving banana peel (BP) and urea. The close interfacial connection between biomass-derived carbon (BC) and porous graphite carbon nitride (pg - C₃N₄) resulted in an increased specific surface area, expanded photo-response range, effective migration of photo-induced electrons, and enhanced stability. The reaction rate constant of pg-C₃N₄/BC for degradation oxytetracycline (OTC) in artificial seawater was 9.4 times higher than that of pristine pg-C₃N₄ after 70 min of visible-light illumination, and pg-C₃N₄/BC also performed better photocatalytic degradation on OTC in the continuous flow reaction process owing to facilitated photogenerated charge separation and transfer. Additionally, a potential photocatalytic mechanism was proposed to explain the enhanced performance of pg-C₃N₄/BC composites.