Global research trends on green technology in the construction and manufacturing industries: a bibliometric analysis

Green technology plays a pivotal role in promoting sustainability within the construction and manufacturing sectors. Growing global awareness of carbon emission reduction has accelerated research efforts to develop low impact and resource efficient solutions. This study applies a bibliometric approach to examine global research trends, thematic evolution, and the scientific impact of green technology. A total of 227 publications indexed in the Web of Science database were analysed using RStudio and VOSviewer. The results reveal three developmental phases; the Early Growth Phase (2009–2013), the Major Growth Phase (2014–2018), and the Rapid Development Phase (2019–2025), with the latter showing a sharp increase in publication output, particularly in East and Southeast Asia. Dominant research themes include performance optimization, energy efficiency, environmental impact assessment, and resource management. Civil engineering, environmental sciences, and multidisciplinary domains contribute substantially to this knowledge base. Thematic and keyword analyses indicate a future research direction emphasizing regulatory policy transformation, green product innovation, life cycle assessment, and smart, energy-efficient systems, underscoring Asia’s emerging leadership in sustainable industrial innovation.