DOI: https://doi.org/10.14710/jil.24.3.542-550

The Influence of Sustainability Consciousness, Environmental Knowledge, and Green Purchase Intention on Marine Environmentally Friendly Behavior in Gen Z with Self Efficacy as a Mediator

Departmenet of Mathematics, Universitas Airlangga, Jl. Dr. Ir. H. Soekarno, Mulyorejo, Kec. Mulyorejo, Surabaya, Jawa Timur 60115, Indonesia

Received: 4 Jun 2025; Revised: 10 Jul 2026; Accepted: 13 Jul 2026; Available online: 31 Jul 2026; Published: 6 Aug 2026.
Editor(s): Budi Warsito

Citation Format:
Abstract
Marine plastic pollution remains one of the most pressing environmental challenges, requiring greater public participation in marine conservation, particularly among Generation Z. Although previous studies have examined the influence of sustainability consciousness, environmental knowledge, and green purchase intention on pro environmental behavior, limited research has specifically investigated marine environmentally friendly behavior while simultaneously examining the mediating role of self-efficacy. Therefore, this study aims to analyze the influence of sustainability consciousness, environmental knowledge, and green purchase intention on marine environmentally friendly behavior among Generation Z, with self-efficacy as a mediating variable. A quantitative survey was conducted involving 194 Generation Z respondents, and the data was analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). The findings reveal that sustainability consciousness, environmental knowledge, and green purchase intention have significant positive direct effects on marine environmentally friendly behavior. However, self efficacy does not significantly mediate these relationships. These findings suggest that cognitive and attitudinal factors play a more important role than self-efficacy in promoting marine environmentally friendly behavior among Generation Z. This study contributes to the growing literature on pro-environmental behavior by providing empirical evidence on the limited mediating role of self-efficacy in the context of marine environmental conservation and offers practical insights for designing environmental education and behavioral intervention programs targeting young people.
Fulltext View|Download Email colleagues
Keywords: Enviromental Knowladge; Green Purchase Intention; Marine Environmental Friendly Behavior; Self-Efficacy; Sustainability Consciousness

Article Metrics:

Article Info
Section: Research Article
Language : EN
Most cited articles
KEBIJAKAN PENGELOLAAN LINGKUNGAN DI KAWASAN KENDENG UTARA PROVINSI JAWA TENGAH Emisi Gas Rumah Kaca dan Hasil Padi dari Cara Olah Tanah dan Pemberian Herbisida Di Lahan Sawah MK 2015 PENGARUH EMISI UDARA PADA SENTRA PENGOLAHAN BATU KAPUR TERHADAP KAPASITAS VITAL PARU PEKERJA DAN MASYARAKAT DI DESA KARAS KECAMATAN SEDAN KABUPATEN REMBANG Kajian Kualitas Air Laut dan Indeks Pencemaran Berdasarkan Parameter Fisika-Kimia di Perairan Distrik Depapre, Jayapura PENGARUH FAKTOR-FAKTOR SOSIAL-EKONOMI TERHADAP PERILAKU PENGELOLAAN SAMPAH DOMESTIK DI NUSA TENGGARA TIMUR More cited articles
  1. Afifah, Y., Rofi’ah, N. L., & Hariz, A. R. (2022). Relationship Between Environmental Literacy with Self Efficacy in Biology Learning Class X High School. Indonesian Journal of Science and Education, 6(2), 25–31. https://doi.org/doi: 10.31002/ijose.v6i2.204
  2. Alamsyah, A., & Artanti, Y. (2021). Pengaruh Environmental Concern dan Perceived Environmental Knowledge Terhadap Niat Beli Hijau Melalui Environmental Attitude Sebagai Variabel Mediasi. Jurnal Ilmu Manajemen, 11(1), 48–56
  3. Eraslan, M., KIR, S., Turan, M. B., & Iqbal, M. (2024). Sustainability Consciousness and Environmental Behaviors: Examining Demographic Differences Among Sports Science Students. Sustainability (Switzerland), 16(24), 1–38. https://doi.org/10.3390/su162410917
  4. Faizah, O. A., Suparti, S., & Hoyyi, A. (2022). Analisis Technology Acceptance Model Pada Aplikasi Platform Shopee Dengan Pendekatan Partial Least Square (Studi Kasus Pada Mahasiswa Universitas Diponegoro). Jurnal Gaussian, 10(4), 532–543. https://doi.org/10.14710/j.gauss.v10i4.33100
  5. Fitri, I., & Simanjuntak, M. (2022). Peningkatan Perilaku Konsumsi Hijau Konsumen Muda Indonesia. Policy Brief Pertanian, Kelautan, Dan Biosains Tropika, 4(3), 320–328. https://doi.org/10.29244/agro-maritim.0403.320-328
  6. Gan, Y., Li, S., Liu, C., Deng, J., & Gao, J. (2025). The Mediating Role of Subjective Norms and Green Self-Efficacy in Marine Environmental Attitudes and Behaviors Among Chinese University Students. Sustainability (Switzerland), 17(5). https://doi.org/10.3390/su17052224
  7. Habibie, A. (2020). Hubungan antara Efikasi Diri dan Pengetahuan Lingkungan dengan Perilaku Bertanggung Jawab terhadap Lingkungan. BIOEDUSCIENCE: Jurnal Pendidikan Biologi Dan Sains, 4(1), 21–26. https://doi.org/10.29405/j.bes/4121-264805
  8. Hair, J., & Alamer, A. (2022). Partial Least Squares Structural Equation Modeling (PLS-SEM) in second language and education research: Guidelines using an applied example. Research Methods in Applied Linguistics, 1(3). https://doi.org/10.1016/j.rmal.2022.100027
  9. Hair, J. F., Ringle, C. M., Gudergan, S. P., Fischer, A., Nitzl, C., & Menictas, C. (2019). Partial least squares structural equation modeling-based discrete choice modeling: an illustration in modeling retailer choice. Business Research, 12(1), 115–142. https://doi.org/10.1007/s40685-018-0072-4
  10. Hamiyati, Nadiroh, & Neolaka, A. (2020). Pengaruh Pengetahuan Pro Environmental Terhadap Perlaku Ramah Lingkungan. Prosiding Seminar Nasional Pascasarjana Universitas Negeri Jakarta, 14–21
  11. Hudayah, S., Ramadhani, M. A., Sary, K. A., Raharjo, S., & Yudaruddin, R. (2023). Green perceived value and green product purchase intention of Gen Z consumers: Moderating role of environmental concern. Environmental Economics, 14(2), 87–102. https://doi.org/10.21511/ee.14(2).2023.07
  12. Islam, J. U., Thomas, G., & Albishri, N. A. (2024). From status to sustainability: How social influence and sustainability consciousness drive green purchase intentions in luxury restaurants. Acta Psychologica, 251(October), 104595. https://doi.org/10.1016/j.actpsy.2024.104595
  13. Latif, F. R. D., & Ishak, A. I. (2022). Faktor-faktor yang Mempengaruhi Belanja Online Berbasis Smartphone: Sebuah Studi Empiris dari Pembelanja Wanita Muda di Indonesia. Selekta Manajemen: Jurnal Mahasiswa Bisnis & Manajemen, 01(03), 249–265. https://journal.uii.ac.id/selma/index
  14. Liputan6. (2023). Indonesia Masuk 5 Besar Negara Penyumbang Limbah Plastik Terbanyak ke Lautan: 1,2 Juta Metrik Ton per Tahun. https://www.liputan6.com/global/read/5305480/indonesia-masuk-5-besar-negara-penyumbang-limbah-plastik-terbanyak-ke-lautan-12-juta-metrik-ton-per-tahunSuara
  15. Memon, M. A., Thurasamy, R., Ting, H., & Cheah, J. H. (2025). Purposive Sampling: a Review and Guidelines for Quantitative Research. Journal of Applied Structural Equation Modeling, 9(1), 1–23. https://doi.org/10.47263/JASEM.9(1)01
  16. Patiño-Toro, O. N., Valencia-Arias, A., Palacios-Moya, L., Uribe-Bedoya, H., Valencia, J., Londoño, W., & Gallegos, A. (2024). Green purchase intention factors: A systematic review and research agenda. Sustainable Environment, 10(1). https://doi.org/10.1080/27658511.2024.2356392
  17. Pering, I. M. A. A. (2021). Kajian Analisis Jalur dengan Structural Equation Modeling (SEM) SMART-PLS 3.0. Jurnal Satyagraha, 3(2), 28–48
  18. Pratiwi, R., Sanusi, A., & Hasibuan, M. (2022). Teacher performance analysis using Smart PLS. Proceeding International Conference on Information Technology and Business, 0(0), 67–73. https://jurnal.darmajaya.ac.id/index.php/icitb/article/view/3386
  19. Putri, N. A. E., & Hayu, R. S. (2024). The Influence of Environmental Knowledge, Green Product Knowledge, Green Word of Mouth, Greenwashing, and Green Confusion as Mediator of Green Purchase Intention. EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi Dan Bisnis, 12(1), 459–476. https://doi.org/10.37676/ekombis.v12i1.4970
  20. Qazi, W., Qureshi, J. A., Raza, S. A., Khan, K. A., & Qureshi, M. A. (2020). Impact of personality traits and university green entrepreneurial support on students’ green entrepreneurial intentions: the moderating role of environmental values. Journal of Applied Research in Higher Education, November. https://doi.org/10.1108/JARHE-05-2020-0130
  21. Qin, Z., Wu, Q., Bi, C., Deng, Y., & Hu, Q. (2024). The relationship between climate change anxiety and pro-environmental behavior in adolescents: the mediating role of future self-continuity and the moderating role of green self-efficacy. BMC Psychology, 12(1), 1–12. https://doi.org/10.1186/s40359-024-01746-1
  22. Ramadani, S., Restuti, S., & Jushermi. (2022). Pengaruh Green Knowledge, Green Environmental Concern Terhadap Green Attitude Dan Green Purchase Intention Pada Generasi Z Di Kota Pekanbaru. Jom, 9(2), 1–15
  23. Rasoolimanesh, S. M. (2022). Discriminant validity assessment in PLS-SEM: A comprehensive composite-based approach. Data Analysis Perspectives Journal, 3(2), 1–8
  24. Setiawan, N. (2009). Pengaruh Pelatihan Peduli Lingkungan terhadap Efikasi Diri Siswa Daerah Rawan Abrasi. Indigenous, Jurnal Ilmiah Berkala Psikologi, 11(2), 74–80
  25. Simatupang, A. S., & Lembana, D. A. A. (2022). Analisis Faktor Yang Mempengaruhi Perilaku Pembelian Green Product Pada Generasi Z. Prosiding Working Papers Series In Management, 14(2), 462–483. https://doi.org/10.25170/wpm.v14i2.4197
  26. Suara Surabaya. (2023). KLHK: 80 Persen Sampah di Laut Indonesia Berasal dari Aktivitas Daratan. https://www.suarasurabaya.net/ekonomibisnis/2023/klhk-80-persen-sampah-di-laut-indonesia-berasal-dari-aktivitas-daratan/
  27. Wetzels, M., Odekerken-Schröder, G., & Van Oppen, C. (2009). Using PLS path modeling for assessing hierarchical construct models: Guidelines and empirical illustration. MIS Quarterly: Management Information Systems, 33(1), 177–196. https://doi.org/10.2307/20650284
  28. Yoong, S. W., Bojei, J., Osman, S., & Hashim, N. H. (2018). Perceived Self-Efficacy and Its Role in Fostering Pro-Environmental Attitude and Behaviours. Asian Journal of Business and Accounting, 11(2), 151–186. https://doi.org/10.22452/ajba.vol11no2.5
  29. Zhang, J., & Cao, A. (2025). The Psychological Mechanisms of Education for Sustainable Development: Environmental Attitudes, Self-Efficacy, and Social Norms as Mediators of Pro-Environmental Behavior Among University Students. Sustainability (Switzerland), 17(3). https://doi.org/10.3390/su17030933

Last update:

No citation recorded.

Last update: 2026-08-16 06:14:33

No citation recorded.